Cooling and ventilating system



Dec. 12, 1933. A. F. MAsuRY ET AL i COOLING AND VENTILATING SYSTEM Filed March 27, 1928 2 Sheets-Sheet l lll.. lrllll llrlnlllllllll DeC- 12, 1933 A. F. MAsURY ET AL 1,938,846

COOLING AND VENTILATING SYSTEM Filed March 27, 1928 2 Sheets-Shee'kI 2 M7, AJTLOL +W.

Patented Dec. 12, 1933 UNITED STATES lPATENT OFFICE.

1,938,846 p oooLmG AND vEN'rILA'riNG SYSTEM Application March 27, 1928. Serial No. 265,136

7 Claims. (Cl. 237-123) The present invention relates to mountings for cooling systems in the rear end of motor vehicles, the internal combustion engines of which are likewise mounted at the rear. In previous designs, the exhaust from the enginesv mounted in this manner has been utilized to induce a ow of cooling air through the side radiators by means of Venturi vthroats formed in the exhaust line. This type of construction permits the entire power plant to be mounted as a unit at the rear of the vehicle and enables it to be mounted and dismounted quite readily. v

This invention utilizes the fundamental principles of the prior designs outlined above but provides a refined construction which insures a more uniform flow of the cooling medium, eliminates drumming noises of the body and provides lighter and smaller exhaust and cooling units so that less space is occupied by them and a rear window is provided.

In addition to the above features, thepresent invention includes a Ventilating system for the interior of the vehicle which enables air to be drawn in through the radiator and discharged into the interior of the vehicle as warm air or, if desired, causes air from the interior to be sucked out through the radiator and discharged from the exhaust stack. The latter path is for summer service while the former serves to supply warm air for heating and Ventilating the vehicle in the winter time.

Further objects will appear as the description proceeds and reference will now be had to the accompanying drawings, wherein:

Figure 1 is a view in vertical section taken on line 1-1 of Figure 3, and looking in the direction of the arrows. y

Figure 2 is a view in section taken on line 2 2 of Figure 1, and looking in the direction of the arrows.

Figure 3 is a View in section taken on line 3-3 of Figure l, and looking in the direction of the arrows.

Referring to the above figures, a designates the body of a vehicle provided with an internal combustion engine b. The form shown is of the six cylinder type, the front three cylinders exhausting into the exhaust pipe b and the rear three into exhaust pipe b2. At the rear of the vehicle, a partition a' forms a compartment for the power unit to be described later.

At either side of the body a, apertures c are formed to the rear of which radiators d are mounted. Suitable connections d accommodate expansion of the radiators and preserve a weather tight joint between them and the sides of the vehicle.

Secured to the rear faces of the radiators are housings e which are provided with horizontal step e to receive exhaust lines formed, in the 00 present instance, as Venturi housings f. These housings communicate with jackets f about the exhaust pipe and manifold and provide a means for Ventilating the engine compartment as indicated by the solid arrows about the exhaust manifold in Figure 3. The housings e also com- 'municate with exhaust stacks g to direct the cooling air to be discharged into the atmosphere after having passed through the radiators.

The exhaust gases pass from the exhaust manifold h through exhaust pipes h' into Venturiv nozzles i. Discharged from these nozzles, the gases flow through successive Venturi throats y', 7" and stack g, the latter being formed with a restricted portion y' to cause a further increase in 76 the velocity of the gases as they pass through the stack.

Through the upper portion of the radiators d,

a horizontal partition d2 is formed, separating the cooling medium which passes above the partition from those passing below the partition and owing into the housings e. Immediately above the housings e, auxiliary housings e2 are formed and the air flowing through the upper portion of the radiators and into housings e2 is carried 85 through conduits e3 and fan housing e4 intothe interior of the vehicle as indicated in Figure 3.

A small electric fan lc is mounted in the fan housing e4 and createsa ow of air into the vehicle under the proper conditions. When it is desired to draw air from the interior of the vehicle, pivoted louvres Z are closed, thus preventing air from being drawn from the exterior of the vehicle through the upper portion of the radiator e. With the louvres closed, the Venturi throat g causes air to be drawn through conduit e3, auxiliary housing e2, through the upper portion of the radiator and out through the stack as indicated by dot and dash `arrows to the left of Figure 1. The louvres at the left of Figure 1 are shown as 100 closed, which position corresponds to summer opl eration, while those at the right of Figure 1 are shown as open corresponding to operating Vconditions in the winter time. It will be quite apparent that in the summer time the electric fan k will not be in operation.

The housing e is sectionalized for convenience in manufacture and assembly, and the stacks are formed with overhanging lips g2 to form a stormtight joint with the roof while permitting expan- 110 sion and contraction between these members. Suitable heat insulation m is provided on the partitions and walls which mightreadily transmit and radiate heat.

A very important feature' of this invention resides in the formation of the walls as curved ysurfaces. The housings e, e2, conduits, radiator mountings, and window aperture 'n are all formed with curved walls, thus preventing body drumming which results lfrom the diaphragm action of plain body walls under vibration. By providing two stacks at either side of the vehicle they may be made small enough to accommodate a window opening n at the rear of the Vehicle and between the stacks. The desirability of this element is quite apparent and its shape such that its walls, being formed with curved surfaces, will not cause drumming.

The invention has been described in connection with the specic construction shown in the accompanying drawings, but its scope is not to be limited, save as defined in the appended claims.

We claim as our invention:

1. An engine cooling system for motor driven vehicles including an engine cooling radiator mounted at the side of the vehicle, an aperture in the side of the vehicle through which cooling air is drawn, a housing on the inside of and enclosing a portion of the radiator, an auxiliary housing on the inside of and communicating with the portion of the radiator'not enclosed by the first housing, a conduit connecting the auxiliary housing with the interior of the vehicle, means for creating a flow of cooling air from the exterior of the vehicle through the radiator and into the auxiliary housing and conduit, an exhaust stack communicating with the first housing, and means to connect the outside of the two housings to draw air from the conduit and auxiliary housing through the radiator and'first housing and discharge it through the stack.

2.' An engine cooling system for motor driven Vehicles including an engine radiator mounted at the side of the vehicle, said radiator having its outer side exposed and including a partition dividing the radiator into a first and second air flow path, each path normally communicating with the outside of the vehicle, means forming a duct to conduct air from the first flow path into the vehicle body, means operable to create a ow of air through said first flow path and duct,

vmeans on the inside of the radiator tending to cause a iiow of 'air from the outside thereof through the second flow path and to the exterior of the vehicle, and adjustable means to provide a passage outside the radiator connecting the first and second flow paths to4 cause air to flow from the duct throughthe radiator twice and be discharged at the exterior of the vehicle.

3. An engine cooling system for motor driven vehicles including an engine radiator mounted at the side of the vehicle, an exhaust pipe on the inside of the radiator, said radiator having its outer side exposed and including a partition dividing the radiator into a first and second air flow path, each path normally communicating with the outside of the vehicle, means forming a duct to conduct air from. the first flow path into the vehicle body, means operable to create a ow of air through said first flow path and duct, means on the inside of the radiator communieating with the exhaust pipe and tending to cause a flow of air from the outside thereof through the second iiow path and to the exterior of the vehicle through the exhaust pipe, and adjustabl means to provide a passage outside the radiator connecting the first and second flow paths to cause air to flow from the duct through the radi ator twice and be discharged at the exterior of thevehicle through the exhaust pipe.

4. An engine cooling system for motor driven Vehicles including an engine radiator mounted at the side of the vehicle, an exhaust pipe on the inside of the radiator, said radiator having its outer side exposed and including a partition dividing the radiator into a first and second air flow path, eachpath normally communicating with the outside of the vehicle, means forming a duct to conduct air from the first flow path into the vehicle body, means operable to create a flow of air through said first flow path andduct, means on the inside of the radiator communicating with the exhaust pipe to create a vacuum in the exhaust pipe to tend to cause a flow of air from the outside of the radiator through the second flow path and to the exterior of the vehicle through the exhaust pipe, and adjustable louvres to provide a passage outside the radiator connecting the iirst and second flow paths to cause air to flow from the duct through the radiator twice and be discharged at the exterior of the vehicle through the exhaust pipe.

5. In an air circulation system for a` closed vehicle body having radiators mounted in the sides of the vehicle, an exhaust stack mounted at either side of the vehicle and horizontally.

spaced from the longitudinal center line of the vehicle, iiuid flow inducing means on each side of the vehicle, housings communicating with the interior of the closed vehicle body and enclosing the said fluid flow inducing means on each side, means to connect the stacks with the housings, and means to direct cooling air through the radiators and to the stacks.

6. An engine cooling system for motor driven vehicles including engine cooling radiators mounted in the sides of the vehicle, an exhaust stack mounted at either side of the vehicle, fluid flow inducing means in each stack, housings enclosing the fluid flow inducing means ci the stacks on each side and portions of the radiators, auxiliary housings enclosing portions of the radiators, conduits connecting the auxiliary housings with the interior of the vehicle, whereby air may flow through the radiators, auxiliary housings and into the conduits, partitions between the housings, and adjustable means on the outsides of the radiators to connect the housings.

7. An engine cooling system for motor driven vehicles including engine cooling radiators mounted in the sides of the vehicle, an exhaust stack mounted at either side of the vehicle, fluid flow inducing means in each stack, housings enclosing the fluid flow inducing means of the stacks on each side and portions of the radiators,v

auxiliary housings enclosing other portions of the radiators, conduits connecting the auxiliary housings with the interior of the vehicle, partitions between the housings, said first housings and inducing means directing air to the stacks, and means to direct air from the second mentioned portion to the ilrst mentioned portion of the radiator whereby a flow of air takes place through the auxiliary housings, radiators, rst housings and into the stacks.

CHARLES FROESCH. ALFRED FELIQWS MASURY`-.

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